10.To "freewheel" or move the machine around without the engine running, turn the dump valve levers located at the back of the pumps to the "freewheel" positions (see Figure 1). To operate the machine, the dump valve levers must be returned to the closed positions.
Dump Valve Levers
(normal position)
SGB112
Figure 1. Dump Valves
PITCH is the angle of the blades (comparing front to rear). A 1/4" downward pitch (front of deck down) is recommended for best cutting performance.
HEIGHT is the nominal distance the blade is off of the ground. This measurement is made with the blades pointed side to side and distance is measured between cutting tip and ground.
Changes to the cutting height can be achieved by reposi- tioning the cutter deck. There are eight available posi- tions from 1" to
WARNING:
Do not adjust the cutting height with the mower blades rotating. Shut off the engine and remove the ignition key. Bodily injury could occur from the rotating blades.
1. Shut off the engine and remove the ignition key.
CUTTER DECK BELT ADJUSTMENTS
All the belts on the SWZU are spring loaded and do not require adjustment. Check the belts for excessive wear or damage daily for the first week. After the first week, check the belts monthly.
1.Remove the belt covers.
2.Inspect the belts for wear, cracking, or glazing. Contact your Scag dealer if any unusual wear is noted.
3.Replace the belt covers.
2.While holding up on the deck support handle, remove the two hairpins from the adjusting pins on one side of the cutter deck (See Figure 2).
3.Lift or lower the deck to the desired cutting height and reinstall the hairpins. A deck height decal is located on the deck mounting frame as an aid in adjusting the deck to the desired height.
4.Repeat the above process on the opposite side of the cutter deck.
CUTTER DECK ADJUSTMENTS
Due to the many cutting conditions that exist, it is difficult to suggest a cutter deck setting that will work for every lawn. There are two adjustments that can be made on these decks, pitch and height.
Remove Hair Pins | SWU99DHA |
Figure 2. Cutting Height Adjustment
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